MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 fb4a446c596738e3d6cbc22a399a32ecaf70803c6a1b319dd5d999fddbdafc85. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.
Database Entry
Miniduke
Vendor detections: 12
| SHA256 hash: | fb4a446c596738e3d6cbc22a399a32ecaf70803c6a1b319dd5d999fddbdafc85 |
|---|---|
| SHA3-384 hash: | be2d842982f1db9827b7e128475a900aa5031d5698c13e8a05c77ed734b0f8be222b6679f2b33135e6e6d15c7540d89c |
| SHA1 hash: | ed2d279a92cc6113c2ab68f804947bbc2dcb9385 |
| MD5 hash: | 90457d93dcd5d5ec1c8cbfc7f8f0fd85 |
| humanhash: | london-mexico-sad-bacon |
| File name: | svchost.exe |
| Download: | download sample |
| Signature | Miniduke |
| File size: | 228'062 bytes |
| First seen: | 2025-11-23 09:33:00 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | edf0659abd5188c18e493cb2537cb8d9 (38 x Miniduke) |
| ssdeep | 3072:NhkIMvcul29GG/GJhysUKvl2wwlIWJd2E5Se:NhkIMvculM/uhyMQfIWjZ |
| Threatray | 18 similar samples on MalwareBazaar |
| TLSH | T187249F2232D0C071E52316B4AF719B72CA7E7C584671C98BABE51E6F2F74AC19239317 |
| TrID | 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 15.9% (.EXE) Win64 Executable (generic) (10522/11/4) 9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 6.8% (.EXE) Win32 Executable (generic) (4504/4/1) |
| Magika | pebin |
| Reporter |  Hexastrike |
| Tags: | exe miniduke |
Intelligence
File Origin
# of uploads :
1
# of downloads :
71
Origin country :
IEVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
2025-11-23_90457d93dcd5d5ec1c8cbfc7f8f0fd85_amadey_cosmicduke_elex_glassworm_smoke-loader.exe
Verdict:
No threats detected
Analysis date:
2025-11-23 09:50:56 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Verdict:
Malicious
Score:
99.9%
Tags:
miniduke dropper
Result
Verdict:
Clean
Maliciousness:
Behaviour
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Sending a custom TCP request
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug base64 cmd crypto evasive explorer fingerprint keylogger lolbin microsoft_visual_cc
Verdict:
Malicious
Labled as:
Backdoor.CosmicDuke
Result
Gathering data
Score:
98%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 32 Exe x86
Verdict:
Malicious
Threat:
Backdoor.Win32.CosmicDuke
Threat name:
Win32.Backdoor.MiniDuke
Status:
Malicious
First seen:
2025-11-22 01:23:29 UTC
File Type:
PE (Exe)
AV detection:
29 of 36 (80.56%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
cosmicduke
Similar samples:
+ 8 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
3/10
Tags:
discovery
Behaviour
Program crash
System Location Discovery: System Language Discovery
Verdict:
Malicious
Tags:
apt Win.Trojan.Zusy-9876296-0
YARA:
detect_apt_APT29
Unpacked files
SH256 hash:
fb4a446c596738e3d6cbc22a399a32ecaf70803c6a1b319dd5d999fddbdafc85
MD5 hash:
90457d93dcd5d5ec1c8cbfc7f8f0fd85
SHA1 hash:
ed2d279a92cc6113c2ab68f804947bbc2dcb9385
Detections:
win_cosmicduke_w0
win_cosmicduke_auto
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
YARA Signatures
MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.
| Rule name: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DetectEncryptedVariants |
|---|---|
| Author: | Zinyth |
| Description: | Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded |
| Rule name: | detect_apt_APT29 |
|---|---|
| Author: | @malgamy12 |
| Description: | detect_APT32_malware |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | RANSOMWARE |
|---|---|
| Author: | ToroGuitar |
| Rule name: | win_cosmicduke_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | Detects win.cosmicduke. |
| Rule name: | win_cosmicduke_w0 |
|---|---|
| Author: | @malgamy12 |
| Description: | detect cosmicduke |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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